All metal detector cables are very vulnerable to damage and cable fatigue due to cuts from thorns, sharp rocks or even damage from storing in your cars trunk. Why take the risk and damage the cable and have to replace your coil at a considerable cost. Most metal detector manufactures can not make repairs to damaged coil cables. What a great inexpensive item to protect your coil. Underwater metal detector will also benefit greatly by using the coil guard. Did you know that one tiny cut through the outer cable jacket will allow water to travel up and down the cable and in a short time can destroy a $1200.00 water detectors coil and possibly get into the main housing.